package com.xgp.gateway.filter;
// 全局过滤器，记入每次请求的响应时间

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
@Slf4j
public class RtGlobalFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        long start = System.currentTimeMillis();
        log.info("请求【{}】开始：时间：{}",
                exchange.getRequest().getURI(),start);
        // 请求放行
        Mono<Void> filter = chain.filter(exchange).doFinally(
                (res) -> {
                    long end = System.currentTimeMillis();
                    log.info("请求【{}】结束：时间：{}",
                            exchange.getRequest().getURI(),end);
                }
        );

        return filter;
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
